Apple's MacBook Pro EFI Firmware Update Improves Boot Camp

On Thursday, Apple posted a MacBook Pro EFI Firmware Update 1.4
that improves the performance and reliability of Mac Book Pros with Intel Core 2 Duo processors and fixes issues with Boot Camp on those systems.

The update will appear in Software Update for those users of MacBook Pro, Core 2 Duo
Systems.

Apple said in the update, "After the firmware is successfully applied to your computer, your BootROM Version will be one of the following:

MBP21.00A5.B07

MBP22.00A5.B07

MBP31.0070.B03

You can confirm the version of the BootROM installed on your computer using System Profiler."